What is the cheapest airline that flies from Ohio to Ontario?

Frontier is the most popular carrier operating from Ohio to Ontario

What airlines fly to Ontario?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Ontario from Ohio according to our data. American Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 9 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Ontario?

Average flight duration from Ohio to Ontario depends on which airport you fly into and out of. Flying from Cincinnati to Los Angeles is 4h 34m on average, while flying from Columbus to Los Angeles is 4h 53m on average. Los Angeles is the most popular airport in Ontario.

When did momondo last update prices for flights from Ohio to Ontario Airport?

Prices for flights from Ohio to Ontario Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Ohio to Ontario Airport?

As of September 2025, there are 6 operators available to choose from for flights from Ohio to Ontario Airport.

How old do you have to be to fly from Ohio to Ontario Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ohio to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$81 Cheap Flights from Ohio to Ontario in 2025/26

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Find the cheapest flights from Ohio to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

6:00 am - 9:35 amDTW-ONT

6h 35m1 stop

6:53 am - 12:59 amONT-DTW

15h 06m1 stop

$148Frontier

Find Deal

Thu, Oct 16 - Wed, Oct 22

6:05 am - 9:35 amCVG-ONT

6h 30m1 stop

4:05 pm - 1:39 amONT-CVG

6h 34m1 stop

$149Frontier

Find Deal

Fri, Oct 24 - Fri, Oct 31

6:51 pm - 7:49 pmPIT-ONT

27h 58m2 stops

6:00 am - 9:37 pmONT-PIT

12h 37m1 stop

$229Multiple Airlines

Find Deal

Sat, Nov 1 - Mon, Nov 10

7:55 am - 11:50 pmDTW-ONT

18h 55m1 stop

8:45 am - 8:00 amONT-DTW

20h 15m2 stops

$231Multiple Airlines

Find Deal

Tue, Oct 28 - Tue, Nov 4

6:30 pm - 8:53 pmCVG-ONT

29h 23m1 stop

4:11 pm - 5:30 pmONT-CVG

22h 19m1 stop

$277Alaska Airlines

Find Deal

Tue, Oct 28 - Fri, Oct 31

6:23 pm - 11:19 amCVG-ONT

19h 56m1 stop

12:13 pm - 5:23 pmONT-CVG

26h 10m1 stop

$284Alaska Airlines

Find Deal

Fri, Dec 5 - Mon, Dec 8

4:10 pm - 11:04 pmDAY-ONT

9h 54m1 stop

7:05 am - 7:16 pmONT-DAY

9h 11m1 stop

$289Delta

Find Deal

Thu, Nov 20 - Thu, Nov 27

9:50 am - 8:58 pmDAY-ONT

14h 08m2 stops

1:00 pm - 10:29 pmONT-DAY

6h 29m1 stop

$294United Airlines

Find Deal

Fri, Feb 6 - Sat, Feb 14

4:00 pm - 9:14 pmDAY-ONT

8h 14m1 stop

10:30 pm - 10:38 amONT-DAY

9h 08m1 stop

$314Delta

Find Deal

Sat, Feb 28 - Tue, Mar 3

6:45 am - 12:37 pmPIT-ONT

8h 52m1 stop

6:38 pm - 5:12 amONT-PIT

7h 34m1 stop

$315United Airlines

Find Deal

Thu, Oct 30 - Mon, Nov 3

Frontier flights from Ohio to Ontario

Our best Frontier deals on Ohio to Ontario flight tickets

Frontier

Oct 16

DTW6:00 amDetroit Metropolitan Wayne County

6h 35m

1 stop

ONT9:35 amOntario

Oct 22

ONT6:53 amOntario

15h 06m

1 stop

DTW12:59 amDetroit Metropolitan Wayne County

$148

Find similar

Frontier

Oct 24

CVG6:05 amCincinnati Cinci./N. Kentucky

6h 30m

1 stop

ONT9:35 amOntario

Oct 31

ONT4:05 pmOntario

6h 34m

1 stop

CVG1:39 amCincinnati Cinci./N. Kentucky

$149

Find similar

Frontier

Oct 23

CVG6:05 amCincinnati Cinci./N. Kentucky

6h 30m

1 stop

ONT9:35 amOntario

Oct 30

ONT12:05 pmOntario

10h 34m

1 stop

CVG1:39 amCincinnati Cinci./N. Kentucky

$150

Find similar

American Airlines flights from Ohio to Ontario

Our best American Airlines deals on Ohio to Ontario flight tickets

American Airlines

Oct 30

PIT7:42 pmPittsburgh

7h 17m

1 stop

ONT11:59 pmOntario

Nov 5

ONT12:53 pmOntario

6h 13m

1 stop

PIT10:06 pmPittsburgh

$312

Find similar

American Airlines

Oct 30

PIT7:42 pmPittsburgh

7h 17m

1 stop

ONT11:59 pmOntario

Nov 5

ONT12:53 pmOntario

6h 13m

1 stop

PIT10:06 pmPittsburgh

$316

Find similar

American Airlines

Oct 20

CMH7:40 amColumbus

7h 21m

1 stop

ONT12:01 pmOntario

Oct 25

ONT6:15 amOntario

8h 09m

2 stops

CMH5:24 pmColumbus

$342

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 10/16

6:00 am-9:35 am

1 stop6h 35m

Ontario

Wed 10/22

6:53 am-12:59 am

1 stop15h 06m

$148

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 10/24

6:05 am-9:35 am

1 stop6h 30m

Ontario

Fri 10/31

4:05 pm-1:39 am

1 stop6h 34m

$149

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Sat 11/1

6:51 pm-7:49 pm

2 stops27h 58m

Ontario

Mon 11/10

6:00 am-9:37 pm

1 stop12h 37m

$229

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 10/28

7:55 am-11:50 pm

1 stop18h 55m

Ontario

Tue 11/4

8:45 am-8:00 am

2 stops20h 15m

$231

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 10/28

6:30 pm-8:53 pm

1 stop29h 23m

Ontario

Fri 10/31

4:11 pm-5:30 pm

1 stop22h 19m

$277

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 12/5

6:23 pm-11:19 am

1 stop19h 56m

Ontario

Mon 12/8

12:13 pm-5:23 pm

1 stop26h 10m

$284

DaytonOntario

DAY - ONT

DAYONT

Dayton

Thu 11/20

4:10 pm-11:04 pm

1 stop9h 54m

Ontario

Thu 11/27

7:05 am-7:16 pm

1 stop9h 11m

$289

DaytonOntario

DAY - ONT

DAYONT

Dayton

Fri 2/6

9:50 am-8:58 pm

2 stops14h 08m

Ontario

Sat 2/14

1:00 pm-10:29 pm

1 stop6h 29m

$294

DaytonOntario

DAY - ONT

DAYONT

Dayton

Sat 2/28

4:00 pm-9:14 pm

1 stop8h 14m

Ontario

Tue 3/3

10:30 pm-10:38 am

1 stop9h 08m

$314

PittsburghOntario

PIT - ONT

PITONT

Pittsburgh

Thu 10/30

6:45 am-12:37 pm

1 stop8h 52m

Ontario

Mon 11/3

6:38 pm-5:12 am

1 stop7h 34m

$315

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ohio to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Ontario?

In general, August is the cheapest month to fly from Ohio to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $255. If you aren’t able to travel during the month of August, then book flights to Ontario from Ohio during February instead. Flights to Ontario in February, while not as cheap as those in August, still average around $296.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Tuesday when prices can be found for as low as $337. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ohio to Ontario for around $488.

What is the cheapest time of day to depart on your flight to Ontario?

At noon is the cheapest time of day to fly from Ohio to Ontario when you can find flight prices for as low as $307. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $380 on average. Flights to Ontario from Ohio in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Ontario?

You are more likely to see cheaper flights to Ontario from Ohio when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $348 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Ohio for as low as $168 on momondo.

Can stopping save me money on Ohio to Ontario flights?

You could potentially save up to 57% on your flight if you consider stops on a Ohio to Ontario flight.

Cheap Ohio to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ohio to Ontario

Direct flights	None

There are no direct flights from Ohio to Ontario. There are no popular flight routes from Ohio to Ontario.

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When did momondo last update prices for flights from Ohio to Ontario Airport?
Prices for flights from Ohio to Ontario Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ohio to Ontario Airport?
As of September 2025, there are 6 operators available to choose from for flights from Ohio to Ontario Airport.
How old do you have to be to fly from Ohio to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ohio to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Ohio to Ontario

Compare and see reviews for airlines that fly from Ohio to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $147	Free Cancellation	Rating 5.8 3,165 reviews	Search Frontier flights
United Airlines	PriceFrom $228	Free Cancellation	Rating 7.4 8,928 reviews	Search United Airlines flights
American Airlines	PriceFrom $250	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $254	Free Cancellation	Rating 7.9 7,973 reviews	Search Delta flights
Southwest	PriceFrom $306	Free Cancellation	Rating 8.0 4,244 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Ohio to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ohio to Ontario. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ohio to Ontario with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ontario from Ohio with this policy.

How can momondo help me find flights from Ohio to Ontario?

momondo helps you find the best flight between Ohio and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ohio to Ontario right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ohio to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.